When I was at the LFS today buying my honey gouramis, I ended up with a spring of guppy grass. I made a comment to the employee about it and she asked if I wanted it. It's in my qt right now which only gets indirect natural light. If I keep it, I will probably move it to the betta tank. Anyone keep this stuff in their tank? Is it a pain in the rear-end to get rid of or grow? Or should I keep it?